********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 30 January 2014 Vol. XXVII No. 005 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.1 seconds beginning 21 Nov 2013 at 0000 UTC = -0.2 seconds beginning 20 Feb 2014 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 seconds *********************************************************************** * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * * There will NOT be a leap second introduced in UTC on * * 30 June 2014. * *********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 14 1 24 56681 0.02451 .00009 0.34071 .00009 -0.120712 0.000012 14 1 25 56682 0.02440 .00009 0.34134 .00009 -0.121833 0.000014 14 1 26 56683 0.02423 .00009 0.34186 .00009 -0.122888 0.000012 14 1 27 56684 0.02426 .00009 0.34263 .00009 -0.123846 0.000012 14 1 28 56685 0.02442 .00009 0.34392 .00009 -0.124785 0.000013 14 1 29 56686 0.02454 .00009 0.34548 .00009 -0.125812 0.000013 14 1 30 56687 0.02453 .00009 0.34697 .00009 -0.126967 0.000012 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = 0.0950 - 0.1061 cos A - 0.0300 sin A + 0.0289 cos C + 0.0366 sin C y = 0.3422 - 0.0325 cos A + 0.0982 sin A + 0.0366 cos C - 0.0289 sin C UT1-UTC = -0.1347 - 0.00104 (MJD - 56695) - (UT2-UT1) where A = 2*pi*(MJD-56687)/365.25 and C = 2*pi*(MJD-56687)/435. TAI-UTC(MJD 56688) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56687)**0.80 S t = 0.00025 (MJD-56687)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2014 1 31 56688 0.0245 0.3483 -0.12827 2014 2 1 56689 0.0243 0.3496 -0.12968 2014 2 2 56690 0.0241 0.3508 -0.13115 2014 2 3 56691 0.0240 0.3520 -0.13259 2014 2 4 56692 0.0239 0.3531 -0.13393 2014 2 5 56693 0.0238 0.3543 -0.13511 2014 2 6 56694 0.0238 0.3555 -0.13612 2014 2 7 56695 0.0237 0.3566 -0.13697 2014 2 8 56696 0.0237 0.3578 -0.13769 2014 2 9 56697 0.0236 0.3589 -0.13833 2014 2 10 56698 0.0236 0.3600 -0.13895 2014 2 11 56699 0.0237 0.3612 -0.13961 2014 2 12 56700 0.0238 0.3624 -0.14034 2014 2 13 56701 0.0239 0.3635 -0.14117 2014 2 14 56702 0.0240 0.3647 -0.14213 2014 2 15 56703 0.0242 0.3658 -0.14322 2014 2 16 56704 0.0244 0.3670 -0.14446 2014 2 17 56705 0.0247 0.3682 -0.14580 2014 2 18 56706 0.0249 0.3694 -0.14721 2014 2 19 56707 0.0252 0.3706 -0.14863 2014 2 20 56708 0.0254 0.3718 -0.15002 2014 2 21 56709 0.0257 0.3731 -0.15134 2014 2 22 56710 0.0260 0.3742 -0.15259 2014 2 23 56711 0.0263 0.3754 -0.15378 2014 2 24 56712 0.0267 0.3766 -0.15495 2014 2 25 56713 0.0270 0.3778 -0.15618 2014 2 26 56714 0.0274 0.3790 -0.15752 2014 2 27 56715 0.0279 0.3802 -0.15906 2014 2 28 56716 0.0283 0.3814 -0.16079 2014 3 1 56717 0.0288 0.3825 -0.16270 2014 3 2 56718 0.0293 0.3837 -0.16468 2014 3 3 56719 0.0298 0.3849 -0.16664 2014 3 4 56720 0.0304 0.3860 -0.16850 2014 3 5 56721 0.0310 0.3872 -0.17019 2014 3 6 56722 0.0316 0.3883 -0.17171 2014 3 7 56723 0.0322 0.3895 -0.17307 2014 3 8 56724 0.0329 0.3906 -0.17430 2014 3 9 56725 0.0336 0.3917 -0.17546 2014 3 10 56726 0.0343 0.3929 -0.17658 2014 3 11 56727 0.0350 0.3940 -0.17771 2014 3 12 56728 0.0358 0.3951 -0.17891 2014 3 13 56729 0.0365 0.3962 -0.18019 2014 3 14 56730 0.0373 0.3973 -0.18157 2014 3 15 56731 0.0382 0.3984 -0.18306 2014 3 16 56732 0.0390 0.3994 -0.18464 2014 3 17 56733 0.0399 0.4005 -0.18628 2014 3 18 56734 0.0408 0.4015 -0.18796 2014 3 19 56735 0.0417 0.4026 -0.18961 2014 3 20 56736 0.0427 0.4036 -0.19121 2014 3 21 56737 0.0437 0.4046 -0.19272 2014 3 22 56738 0.0447 0.4056 -0.19416 2014 3 23 56739 0.0457 0.4066 -0.19554 2014 3 24 56740 0.0467 0.4076 -0.19693 2014 3 25 56741 0.0478 0.4085 -0.19837 2014 3 26 56742 0.0489 0.4095 -0.19993 2014 3 27 56743 0.0500 0.4104 -0.20164 2014 3 28 56744 0.0512 0.4113 -0.20350 2014 3 29 56745 0.0523 0.4122 -0.20547 2014 3 30 56746 0.0535 0.4131 -0.20746 2014 3 31 56747 0.0547 0.4140 -0.20940 2014 4 1 56748 0.0559 0.4148 -0.21121 2014 4 2 56749 0.0572 0.4157 -0.21285 2014 4 3 56750 0.0585 0.4165 -0.21432 2014 4 4 56751 0.0597 0.4173 -0.21563 2014 4 5 56752 0.0611 0.4181 -0.21685 2014 4 6 56753 0.0624 0.4188 -0.21800 2014 4 7 56754 0.0637 0.4196 -0.21915 2014 4 8 56755 0.0651 0.4203 -0.22032 2014 4 9 56756 0.0665 0.4210 -0.22155 2014 4 10 56757 0.0679 0.4217 -0.22287 2014 4 11 56758 0.0693 0.4224 -0.22429 2014 4 12 56759 0.0708 0.4230 -0.22578 2014 4 13 56760 0.0722 0.4236 -0.22734 2014 4 14 56761 0.0737 0.4242 -0.22893 2014 4 15 56762 0.0752 0.4248 -0.23052 2014 4 16 56763 0.0767 0.4254 -0.23207 2014 4 17 56764 0.0782 0.4259 -0.23353 2014 4 18 56765 0.0798 0.4264 -0.23490 2014 4 19 56766 0.0813 0.4269 -0.23619 2014 4 20 56767 0.0829 0.4274 -0.23746 2014 4 21 56768 0.0845 0.4279 -0.23875 2014 4 22 56769 0.0861 0.4283 -0.24013 2014 4 23 56770 0.0877 0.4287 -0.24162 2014 4 24 56771 0.0893 0.4291 -0.24323 2014 4 25 56772 0.0909 0.4294 -0.24495 2014 4 26 56773 0.0926 0.4298 -0.24670 2014 4 27 56774 0.0943 0.4301 -0.24842 2014 4 28 56775 0.0959 0.4304 -0.25005 2014 4 29 56776 0.0976 0.4306 -0.25152 2014 4 30 56777 0.0993 0.4308 -0.25283 2014 5 1 56778 0.1010 0.4311 -0.25397 2014 5 2 56779 0.1027 0.4312 -0.25500 2014 5 3 56780 0.1044 0.4314 -0.25594 2014 5 4 56781 0.1062 0.4315 -0.25684 2014 5 5 56782 0.1079 0.4316 -0.25775 2014 5 6 56783 0.1096 0.4317 -0.25870 2014 5 7 56784 0.1114 0.4318 -0.25972 2014 5 8 56785 0.1132 0.4318 -0.26081 2014 5 9 56786 0.1149 0.4318 -0.26198 2014 5 10 56787 0.1167 0.4318 -0.26322 2014 5 11 56788 0.1185 0.4317 -0.26449 2014 5 12 56789 0.1202 0.4316 -0.26578 2014 5 13 56790 0.1220 0.4315 -0.26702 2014 5 14 56791 0.1238 0.4314 -0.26820 2014 5 15 56792 0.1256 0.4312 -0.26929 2014 5 16 56793 0.1274 0.4311 -0.27030 2014 5 17 56794 0.1292 0.4308 -0.27125 2014 5 18 56795 0.1310 0.4306 -0.27220 2014 5 19 56796 0.1327 0.4303 -0.27319 2014 5 20 56797 0.1345 0.4300 -0.27428 2014 5 21 56798 0.1363 0.4297 -0.27547 2014 5 22 56799 0.1381 0.4294 -0.27674 2014 5 23 56800 0.1399 0.4290 -0.27804 2014 5 24 56801 0.1417 0.4286 -0.27931 2014 5 25 56802 0.1435 0.4281 -0.28048 2014 5 26 56803 0.1453 0.4277 -0.28152 2014 5 27 56804 0.1470 0.4272 -0.28240 2014 5 28 56805 0.1488 0.4267 -0.28311 2014 5 29 56806 0.1506 0.4261 -0.28369 2014 5 30 56807 0.1523 0.4256 -0.28417 2014 5 31 56808 0.1541 0.4250 -0.28460 2014 6 1 56809 0.1558 0.4243 -0.28501 2014 6 2 56810 0.1576 0.4237 -0.28544 2014 6 3 56811 0.1593 0.4230 -0.28593 2014 6 4 56812 0.1610 0.4223 -0.28648 2014 6 5 56813 0.1627 0.4216 -0.28710 2014 6 6 56814 0.1644 0.4208 -0.28778 2014 6 7 56815 0.1661 0.4200 -0.28849 2014 6 8 56816 0.1678 0.4192 -0.28922 2014 6 9 56817 0.1695 0.4183 -0.28993 2014 6 10 56818 0.1712 0.4175 -0.29059 2014 6 11 56819 0.1728 0.4166 -0.29117 2014 6 12 56820 0.1745 0.4157 -0.29167 2014 6 13 56821 0.1761 0.4147 -0.29211 2014 6 14 56822 0.1777 0.4137 -0.29254 2014 6 15 56823 0.1793 0.4127 -0.29302 2014 6 16 56824 0.1809 0.4117 -0.29361 2014 6 17 56825 0.1824 0.4107 -0.29431 2014 6 18 56826 0.1840 0.4096 -0.29511 2014 6 19 56827 0.1855 0.4085 -0.29594 2014 6 20 56828 0.1870 0.4074 -0.29674 2014 6 21 56829 0.1885 0.4062 -0.29744 2014 6 22 56830 0.1900 0.4051 -0.29801 2014 6 23 56831 0.1915 0.4039 -0.29843 2014 6 24 56832 0.1929 0.4026 -0.29868 2014 6 25 56833 0.1944 0.4014 -0.29880 2014 6 26 56834 0.1958 0.4001 -0.29881 2014 6 27 56835 0.1971 0.3988 -0.29877 2014 6 28 56836 0.1985 0.3975 -0.29871 2014 6 29 56837 0.1999 0.3962 -0.29867 2014 6 30 56838 0.2012 0.3948 -0.29868 2014 7 1 56839 0.2025 0.3935 -0.29876 2014 7 2 56840 0.2038 0.3921 -0.29892 2014 7 3 56841 0.2050 0.3906 -0.29914 2014 7 4 56842 0.2062 0.3892 -0.29941 2014 7 5 56843 0.2074 0.3877 -0.29970 2014 7 6 56844 0.2086 0.3863 -0.30000 2014 7 7 56845 0.2098 0.3848 -0.30026 2014 7 8 56846 0.2109 0.3832 -0.30047 2014 7 9 56847 0.2120 0.3817 -0.30062 2014 7 10 56848 0.2131 0.3801 -0.30072 2014 7 11 56849 0.2141 0.3786 -0.30081 2014 7 12 56850 0.2152 0.3770 -0.30095 2014 7 13 56851 0.2162 0.3754 -0.30121 2014 7 14 56852 0.2171 0.3737 -0.30161 2014 7 15 56853 0.2181 0.3721 -0.30215 2014 7 16 56854 0.2190 0.3704 -0.30277 2014 7 17 56855 0.2199 0.3687 -0.30340 2014 7 18 56856 0.2207 0.3670 -0.30396 2014 7 19 56857 0.2216 0.3653 -0.30438 2014 7 20 56858 0.2224 0.3636 -0.30464 2014 7 21 56859 0.2231 0.3619 -0.30474 2014 7 22 56860 0.2239 0.3601 -0.30470 2014 7 23 56861 0.2246 0.3584 -0.30456 2014 7 24 56862 0.2252 0.3566 -0.30437 2014 7 25 56863 0.2259 0.3548 -0.30415 2014 7 26 56864 0.2265 0.3530 -0.30396 2014 7 27 56865 0.2271 0.3512 -0.30383 2014 7 28 56866 0.2276 0.3494 -0.30377 2014 7 29 56867 0.2281 0.3475 -0.30379 2014 7 30 56868 0.2286 0.3457 -0.30388 2014 7 31 56869 0.2291 0.3438 -0.30403 2014 8 1 56870 0.2295 0.3420 -0.30421 2014 8 2 56871 0.2299 0.3401 -0.30440 2014 8 3 56872 0.2302 0.3382 -0.30455 2014 8 4 56873 0.2305 0.3363 -0.30466 2014 8 5 56874 0.2308 0.3344 -0.30472 2014 8 6 56875 0.2310 0.3325 -0.30472 2014 8 7 56876 0.2312 0.3306 -0.30472 2014 8 8 56877 0.2314 0.3287 -0.30478 2014 8 9 56878 0.2316 0.3268 -0.30496 2014 8 10 56879 0.2317 0.3249 -0.30534 2014 8 11 56880 0.2317 0.3230 -0.30593 2014 8 12 56881 0.2318 0.3210 -0.30670 2014 8 13 56882 0.2318 0.3191 -0.30757 2014 8 14 56883 0.2317 0.3172 -0.30846 2014 8 15 56884 0.2317 0.3152 -0.30926 2014 8 16 56885 0.2315 0.3133 -0.30993 2014 8 17 56886 0.2314 0.3114 -0.31045 2014 8 18 56887 0.2312 0.3094 -0.31084 2014 8 19 56888 0.2310 0.3075 -0.31113 2014 8 20 56889 0.2308 0.3056 -0.31137 2014 8 21 56890 0.2305 0.3036 -0.31160 2014 8 22 56891 0.2301 0.3017 -0.31186 2014 8 23 56892 0.2298 0.2998 -0.31219 2014 8 24 56893 0.2294 0.2978 -0.31259 2014 8 25 56894 0.2290 0.2959 -0.31308 2014 8 26 56895 0.2285 0.2940 -0.31366 2014 8 27 56896 0.2280 0.2921 -0.31432 2014 8 28 56897 0.2274 0.2902 -0.31504 2014 8 29 56898 0.2269 0.2883 -0.31579 2014 8 30 56899 0.2263 0.2864 -0.31657 2014 8 31 56900 0.2256 0.2845 -0.31732 2014 9 1 56901 0.2249 0.2826 -0.31802 2014 9 2 56902 0.2242 0.2808 -0.31867 2014 9 3 56903 0.2234 0.2789 -0.31929 2014 9 4 56904 0.2227 0.2770 -0.31991 2014 9 5 56905 0.2218 0.2752 -0.32063 2014 9 6 56906 0.2210 0.2734 -0.32149 2014 9 7 56907 0.2201 0.2715 -0.32253 2014 9 8 56908 0.2191 0.2697 -0.32373 2014 9 9 56909 0.2182 0.2679 -0.32503 2014 9 10 56910 0.2172 0.2662 -0.32634 2014 9 11 56911 0.2161 0.2644 -0.32757 2014 9 12 56912 0.2151 0.2626 -0.32865 2014 9 13 56913 0.2140 0.2609 -0.32957 2014 9 14 56914 0.2128 0.2591 -0.33034 2014 9 15 56915 0.2116 0.2574 -0.33100 2014 9 16 56916 0.2104 0.2557 -0.33160 2014 9 17 56917 0.2092 0.2541 -0.33223 2014 9 18 56918 0.2079 0.2524 -0.33291 2014 9 19 56919 0.2066 0.2507 -0.33368 2014 9 20 56920 0.2053 0.2491 -0.33458 2014 9 21 56921 0.2039 0.2475 -0.33561 2014 9 22 56922 0.2025 0.2459 -0.33679 2014 9 23 56923 0.2011 0.2443 -0.33810 2014 9 24 56924 0.1996 0.2428 -0.33945 2014 9 25 56925 0.1981 0.2412 -0.34085 2014 9 26 56926 0.1966 0.2397 -0.34223 2014 9 27 56927 0.1951 0.2382 -0.34361 2014 9 28 56928 0.1935 0.2368 -0.34492 2014 9 29 56929 0.1919 0.2353 -0.34612 2014 9 30 56930 0.1902 0.2339 -0.34729 2014 10 1 56931 0.1885 0.2325 -0.34841 2014 10 2 56932 0.1868 0.2311 -0.34958 2014 10 3 56933 0.1851 0.2298 -0.35086 2014 10 4 56934 0.1834 0.2284 -0.35228 2014 10 5 56935 0.1816 0.2271 -0.35382 2014 10 6 56936 0.1798 0.2259 -0.35553 2014 10 7 56937 0.1779 0.2246 -0.35732 2014 10 8 56938 0.1761 0.2234 -0.35907 2014 10 9 56939 0.1742 0.2222 -0.36071 2014 10 10 56940 0.1723 0.2210 -0.36222 2014 10 11 56941 0.1703 0.2199 -0.36355 2014 10 12 56942 0.1684 0.2188 -0.36469 2014 10 13 56943 0.1664 0.2177 -0.36566 2014 10 14 56944 0.1644 0.2166 -0.36654 2014 10 15 56945 0.1624 0.2156 -0.36736 2014 10 16 56946 0.1603 0.2146 -0.36818 2014 10 17 56947 0.1582 0.2136 -0.36906 2014 10 18 56948 0.1561 0.2127 -0.37014 2014 10 19 56949 0.1540 0.2118 -0.37134 2014 10 20 56950 0.1519 0.2109 -0.37268 2014 10 21 56951 0.1497 0.2100 -0.37417 2014 10 22 56952 0.1476 0.2092 -0.37579 2014 10 23 56953 0.1454 0.2084 -0.37747 2014 10 24 56954 0.1432 0.2077 -0.37916 2014 10 25 56955 0.1410 0.2070 -0.38076 2014 10 26 56956 0.1387 0.2063 -0.38227 2014 10 27 56957 0.1365 0.2056 -0.38374 2014 10 28 56958 0.1342 0.2050 -0.38521 2014 10 29 56959 0.1319 0.2044 -0.38672 2014 10 30 56960 0.1296 0.2039 -0.38830 2014 10 31 56961 0.1273 0.2033 -0.38998 2014 11 1 56962 0.1250 0.2029 -0.39180 2014 11 2 56963 0.1226 0.2024 -0.39373 2014 11 3 56964 0.1203 0.2020 -0.39577 2014 11 4 56965 0.1179 0.2016 -0.39783 2014 11 5 56966 0.1155 0.2013 -0.39986 2014 11 6 56967 0.1131 0.2010 -0.40180 2014 11 7 56968 0.1107 0.2007 -0.40359 2014 11 8 56969 0.1083 0.2005 -0.40519 2014 11 9 56970 0.1059 0.2003 -0.40668 2014 11 10 56971 0.1035 0.2001 -0.40809 2014 11 11 56972 0.1011 0.2000 -0.40939 2014 11 12 56973 0.0987 0.1999 -0.41065 2014 11 13 56974 0.0962 0.1998 -0.41195 2014 11 14 56975 0.0938 0.1998 -0.41326 2014 11 15 56976 0.0914 0.1998 -0.41464 2014 11 16 56977 0.0889 0.1999 -0.41606 2014 11 17 56978 0.0865 0.2000 -0.41753 2014 11 18 56979 0.0840 0.2001 -0.41903 2014 11 19 56980 0.0816 0.2002 -0.42054 2014 11 20 56981 0.0791 0.2005 -0.42203 2014 11 21 56982 0.0766 0.2007 -0.42349 2014 11 22 56983 0.0742 0.2010 -0.42489 2014 11 23 56984 0.0717 0.2013 -0.42617 2014 11 24 56985 0.0693 0.2016 -0.42738 2014 11 25 56986 0.0669 0.2020 -0.42854 2014 11 26 56987 0.0644 0.2024 -0.42974 2014 11 27 56988 0.0620 0.2029 -0.43106 2014 11 28 56989 0.0595 0.2034 -0.43251 2014 11 29 56990 0.0571 0.2039 -0.43404 2014 11 30 56991 0.0547 0.2045 -0.43568 2014 12 1 56992 0.0523 0.2051 -0.43740 2014 12 2 56993 0.0499 0.2058 -0.43904 2014 12 3 56994 0.0475 0.2065 -0.44056 2014 12 4 56995 0.0451 0.2072 -0.44194 2014 12 5 56996 0.0427 0.2079 -0.44316 2014 12 6 56997 0.0403 0.2087 -0.44424 2014 12 7 56998 0.0380 0.2096 -0.44524 2014 12 8 56999 0.0356 0.2104 -0.44620 2014 12 9 57000 0.0333 0.2113 -0.44714 2014 12 10 57001 0.0310 0.2123 -0.44810 2014 12 11 57002 0.0287 0.2133 -0.44915 2014 12 12 57003 0.0264 0.2143 -0.45027 2014 12 13 57004 0.0241 0.2153 -0.45143 2014 12 14 57005 0.0218 0.2164 -0.45266 2014 12 15 57006 0.0196 0.2175 -0.45398 2014 12 16 57007 0.0173 0.2187 -0.45533 2014 12 17 57008 0.0151 0.2199 -0.45667 2014 12 18 57009 0.0129 0.2211 -0.45797 2014 12 19 57010 0.0108 0.2223 -0.45920 2014 12 20 57011 0.0086 0.2236 -0.46033 2014 12 21 57012 0.0065 0.2250 -0.46139 2014 12 22 57013 0.0044 0.2263 -0.46237 2014 12 23 57014 0.0023 0.2277 -0.46334 2014 12 24 57015 0.0002 0.2291 -0.46440 2014 12 25 57016 -0.0019 0.2306 -0.46559 2014 12 26 57017 -0.0039 0.2321 -0.46690 2014 12 27 57018 -0.0059 0.2336 -0.46832 2014 12 28 57019 -0.0079 0.2351 -0.46983 2014 12 29 57020 -0.0098 0.2367 -0.47132 2014 12 30 57021 -0.0117 0.2383 -0.47276 2014 12 31 57022 -0.0136 0.2400 -0.47408 2015 1 1 57023 -0.0155 0.2417 -0.47527 2015 1 2 57024 -0.0174 0.2434 -0.47630 2015 1 3 57025 -0.0192 0.2451 -0.47720 2015 1 4 57026 -0.0210 0.2469 -0.47806 2015 1 5 57027 -0.0227 0.2487 -0.47888 2015 1 6 57028 -0.0244 0.2505 -0.47970 2015 1 7 57029 -0.0261 0.2523 -0.48061 2015 1 8 57030 -0.0278 0.2542 -0.48165 2015 1 9 57031 -0.0295 0.2561 -0.48277 2015 1 10 57032 -0.0311 0.2580 -0.48399 2015 1 11 57033 -0.0326 0.2600 -0.48526 2015 1 12 57034 -0.0342 0.2620 -0.48657 2015 1 13 57035 -0.0357 0.2640 -0.48783 2015 1 14 57036 -0.0371 0.2660 -0.48899 2015 1 15 57037 -0.0386 0.2680 -0.49007 2015 1 16 57038 -0.0400 0.2701 -0.49114 2015 1 17 57039 -0.0414 0.2722 -0.49215 2015 1 18 57040 -0.0427 0.2743 -0.49313 2015 1 19 57041 -0.0440 0.2765 -0.49413 2015 1 20 57042 -0.0452 0.2787 -0.49521 2015 1 21 57043 -0.0465 0.2808 -0.49640 2015 1 22 57044 -0.0477 0.2831 -0.49775 2015 1 23 57045 -0.0488 0.2853 -0.49922 2015 1 24 57046 -0.0499 0.2875 -0.50071 2015 1 25 57047 -0.0510 0.2898 -0.50212 2015 1 26 57048 -0.0520 0.2921 -0.50340 2015 1 27 57049 -0.0530 0.2944 -0.50449 2015 1 28 57050 -0.0540 0.2967 -0.50542 2015 1 29 57051 -0.0549 0.2990 -0.50620 2015 1 30 57052 -0.0558 0.3014 -0.50684 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 56665 -81.38 0.30 -8.77 0.04 56666 -81.45 0.30 -8.89 0.04 56667 -81.34 0.30 -9.11 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56665 0.098 0.119 0.245 0.040 56666 0.118 0.119 0.288 0.040 56667 0.141 0.119 0.309 0.040 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).